/Engine/Source/Editor/UnrealEd/Public/GameModeInfoCustomizer.h
Create widget for the name of a default class property
[TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [SWidget](API\Runtime\SlateCore\Widgets\SWidget) > CreateGameModePropertyLabelWidget ( [FName](API\Runtime\Core\UObject\FName) PropertyName )